JPS60220233A - Frp leaf spring device - Google Patents
Frp leaf spring deviceInfo
- Publication number
- JPS60220233A JPS60220233A JP7712484A JP7712484A JPS60220233A JP S60220233 A JPS60220233 A JP S60220233A JP 7712484 A JP7712484 A JP 7712484A JP 7712484 A JP7712484 A JP 7712484A JP S60220233 A JPS60220233 A JP S60220233A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- leaf springs
- frp
- spacer body
- leaf spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はＦＲＰ製のばね板を有するＦＲＰ板ばね装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an FRP leaf spring device having a spring leaf made of FRP.
ＦＲＰ製のばね板を用いた板ばね装置は従来の鋼製板ば
ね装置に比べて大幅な軽量化が図れるため、車輛懸架装
置用としてきわめて有望である。A leaf spring device using FRP spring plates can be significantly lighter in weight than a conventional steel leaf spring device, so it is extremely promising for use in vehicle suspension systems.
しかし重ね板ばね装置のようにばね板相互が摺接するよ
うな使い方をする場合、ＦＲＰの摺接部が弱点となシ、
ばね板の摩耗、ひいては早期折損につながる原因となる
。このためＦＲＰ製のばね板相互、あるいはＦＲＰばね
板と金属製はね板とが摺接するような板ばね装置にあっ
ては、上述したような摩耗等に対処する何らかの手段が
必要であることがわかってきた。However, when using a stacked leaf spring device where the spring plates are in sliding contact with each other, the sliding contact part of FRP is a weak point.
This can lead to wear of the spring plate and even premature breakage. For this reason, in a leaf spring device in which FRP spring plates are in sliding contact with each other or an FRP spring plate and a metal spring plate, it is necessary to take some means to deal with the wear and tear described above. I've come to understand.
本発明は上記事情にもとづき々されたものでその目的と
するところは、少々くとも１枚のＦＲＰ製ばね板を用い
ているＦＲＰ板ばね装置において、ＦＲＰ製はね板の摩
耗による耐久性の劣化等の不具合を防止することにある
。The present invention was developed based on the above-mentioned circumstances, and its purpose is to reduce the durability due to wear of the FRP spring plate in an FRP leaf spring device using at least one FRP spring plate. The purpose is to prevent problems such as deterioration.
本発明の要旨とするところは、ばね板相互の締結部、例
えばＵ ＋ｌ？ルト付近におけるばね板相互間に、圧縮
荷重を受けると比較的容易に変形する柔軟な介挿体を装
填するとともに、ばね板の端部側の部位には、ばね板の
相互対向面の少なくともいずれか一方の面にスペーサ体
を設け、ばね板間に間隙部を確保するようにしたことに
ある。The gist of the present invention is that the fastening portion between the spring plates, for example U+l? A flexible insert that deforms relatively easily when subjected to a compressive load is loaded between the spring plates in the vicinity of the bolt, and at least one of the mutually opposing surfaces of the spring plates is placed on the end side of the spring plate. A spacer body is provided on one side to ensure a gap between the spring plates.
上記構成の本発明によれば、締結部付近に上記介挿体を
挿入したことにより、ばね板が撓む際に締結部付近でば
ね板相互がＩｆ接こすれたり、砂かどの異物が侵入して
摩耗の原因となることを防止できるとともに、ばね板の
端部側には上記スペーサ体を設けたことでばね板間に隙
間が確保され、ばね板相互の接触による摩耗を防止でき
るようになり、ＦＲＰ板ばね装置のもつ弱点を軽減でき
るものである。According to the present invention having the above configuration, by inserting the insert near the fastening portion, when the spring plates are bent, the spring plates may rub against each other near the fastening portion, and foreign objects such as sand corners may not enter. In addition, by providing the above-mentioned spacer body on the end side of the spring plates, a gap is secured between the spring plates, and wear caused by contact between the spring plates can be prevented. , the weaknesses of the FRP leaf spring device can be alleviated.
以下に本発明の一実施例について第１図を参照して説明
する。図中１は第１のばね板、２は第２のばね板である
。これらのばね板１．２はそれぞれＦＲＰ （繊維強化
合成樹脂）製であって、第１のばね板１の両端部には車
体側に連結するための目玉部材３，３が取着されている
。An embodiment of the present invention will be described below with reference to FIG. In the figure, 1 is a first spring plate, and 2 is a second spring plate. Each of these spring plates 1.2 is made of FRP (fiber-reinforced synthetic resin), and eyepiece members 3, 3 are attached to both ends of the first spring plate 1 for connection to the vehicle body. .
またばね板１．２の長手方向中間部はセンタダルト５と
ナツト６で互いに拘束されているとともに、Ｕ＆ル）７
、７（一方のみ図示）によってアクスル８と一体的に
締結されるように力っている。In addition, the longitudinal intermediate portion of the spring plate 1.2 is restrained by a center bolt 5 and a nut 6, and
, 7 (only one of which is shown in the figure) so as to be integrally fastened to the axle 8.
そしてばね板１，２相互の締結部１ａ、ｚａ。And the fastening portions 1a and za between the spring plates 1 and 2.
つまりＵｙｌ？ルト７付近におけるばね板間の隙間に介
挿体１０が装填されている。この介挿体１０は、例えば
ゴム、ウレタン発泡体などのように、ばね板１．２の撓
みに伴なう圧縮荷重を受けたときに比較的容易に変形で
きしかも復元力をもつような弾性体、あるいは粘性体、
粘弾性体などを採用し、必要に応じてばね板１，２の少
なくともいずれか一方に接着してあってもよい。In other words, Uyl? An insert 10 is loaded into the gap between the spring plates near the root 7. The insert 10 is made of an elastic material, such as rubber or urethane foam, that can be relatively easily deformed and has a restoring force when subjected to a compressive load accompanying the deflection of the spring plate 1.2. body or viscous body,
A viscoelastic material or the like may be used and adhered to at least one of the spring plates 1 and 2 as required.
一方、ばね板１．２の端部側の部位には、少なくともい
ずれか一方のばね板面にスペーサ体１２が取着されてい
る。このスペーサ体１２としては、例えば合成樹脂、あ
るいは比較的硬いゴムなど、要するＫばね板１，２間に
挾まれて圧縮荷重を受けても比較的変形しにくい材料を
使用する。このスペーサ体１２の採用によシ、ばね板１
．２間には通常の使用状態では常に間隙部１ 、？ 、
Ｚ Ｊが確保される。On the other hand, on the end side of the spring plate 1.2, a spacer body 12 is attached to at least one of the spring plate surfaces. As the spacer body 12, a material such as synthetic resin or relatively hard rubber is used, which is relatively difficult to deform even if it is sandwiched between the K spring plates 1 and 2 and subjected to a compressive load. By adopting this spacer body 12, the spring plate 1
．． There is always a gap between 1 and 2 under normal use. ,
Z J is secured.
また本実施例の場合には、スペーサ体１２゜１２は、圧
縮力を受けると比較的容易に変形する柔軟な緩衝部材７
５．１５に埋設されている。Further, in the case of this embodiment, the spacer body 12 12 is a flexible buffer member 7 that deforms relatively easily when subjected to compressive force.
It was buried on 5.15.
この緩衝部材１５．１５としては、繰少返し大きく変形
させても変形に耐えるよう、ゴム、発泡ウレタンなどの
弾性材料を用い、本実施例では第２のばね板２に接着す
るようにしている。As this buffer member 15.15, an elastic material such as rubber or urethane foam is used so that it can withstand deformation even if it is repeatedly and greatly deformed, and in this embodiment, it is bonded to the second spring plate 2. .
以上のように構成された板ばね装置によれば、５−
砂などの異物が入り込み易いばね板の締結部付近には比
較的容易に変形する介挿体１０を充填しであるため、砂
力どの挾み込みによる摩耗、およびばね板１．２が直接
こすれることによる摩耗などを防止できる。しかもスペ
ーサ体１２゜Ｉ２の併用によって通常の使用状態ではば
ね板間に間隙部１ 、？ 、 ７３を確保でき、ばね板
１゜２が互いに接触しないため、摩耗を防止できる。According to the leaf spring device configured as described above, 5- Since the inserts 10, which are relatively easily deformed, are filled in the vicinity of the fastening portions of the spring plates into which foreign substances such as sand easily enter, sand force is reduced. It is possible to prevent wear caused by the pinching and wear caused by direct rubbing of the spring plate 1.2. Furthermore, by using the spacer body 12°I2, there is a gap 1, ? between the spring plates under normal usage conditions. , 73 can be ensured, and since the spring plates 1 and 2 do not come into contact with each other, wear can be prevented.
またスペーサ体１２．１２を緩衝部材１５゜Ｉ５に埋設
することにより、スペーサ体１２゜１２がばね板１と直
接触れないようにしであるから、摩耗を防ぐ上で更に効
果的である。Furthermore, by embedding the spacer body 12.12 in the buffer member 15.degree. I5, the spacer body 12.12 is prevented from coming into direct contact with the spring plate 1, which is more effective in preventing wear.
なお第２図は本発明の別の実施例を示しており、この場
合スペーサ体１２．１２と向い合うばね１の下面に、摩
耗に強い金属あるいはゴム、高分子材料ガどからなる耐
摩耗部材１７．１７を取着しである。従ってこの場合も
、ばね板Ｉとスペーサ体１１．１２との直接接触による
摩耗を防ぐ上で効果がある。その他基本的構造は第１図
のものと同様であるから対応する箇所に６−
同−の符号を付して説明は省略する。FIG. 2 shows another embodiment of the present invention, in which a wear-resistant member made of wear-resistant metal, rubber, polymeric material, etc. is provided on the lower surface of the spring 1 facing the spacer body 12.12. 17.17 was installed. Therefore, this case is also effective in preventing wear caused by direct contact between the spring plate I and the spacer body 11, 12. Since the other basic structure is the same as that in FIG. 1, corresponding parts are given the same reference numerals 6- and the explanation thereof will be omitted.
また第３図はスペーサ体１２の一変形例を示している。Further, FIG. 3 shows a modified example of the spacer body 12.
この場合、第２のばね板２の端部を第１のばね板１側に
突出させ、この突出部分がスペーサ体Ｉ２と［７て機能
するようにしている。In this case, the end of the second spring plate 2 is made to protrude toward the first spring plate 1, and this protruding portion functions as the spacer body I2.
そしてこのスペーサ体１２と対向する相手側のばね板Ｉ
に、例えばゴム、発泡ウレタンその他の高分子材料など
からなる柔軟な緩衝部材２０を設けることにより、スペ
ーサ体２０がばね板Ｉに直接接触するのを防いでいる。And the other side spring plate I facing this spacer body 12
By providing a flexible buffer member 20 made of, for example, rubber, foamed urethane, or other polymer material, the spacer body 20 is prevented from coming into direct contact with the spring plate I.
更に第４図に示された本発明の別の実施例のように、ス
ペーサ体１２をばね板Ｉに直接固着しないで、ゴム、発
泡ウレタン、その他の高分子材料などからカる変形し易
い柔軟な緩衝部材１５に埋め込み、この緩衝部材１５を
ばね板Ｉに固着させるようにしてもよい。Furthermore, as in another embodiment of the present invention shown in FIG. 4, the spacer body 12 is not directly fixed to the spring plate I, but is made of a flexible and easily deformable material such as rubber, urethane foam, or other polymeric material. It is also possible to embed it in a buffer member 15 and fix the buffer member 15 to the spring plate I.
なお上記したいずれの実施例においても鋼製ばね板とＦ
ＲＰばね板を組合わせて重ね板ばねを構成するようにし
てもよく、またばね板の枚数は２枚に限らないことは言
うまでもない。In addition, in any of the above embodiments, the steel spring plate and the F
It goes without saying that the RP spring plates may be combined to form a stacked leaf spring, and the number of spring plates is not limited to two.
前記したように本発明によれば、ＦＲＰＩ！のばね板を
備えた板はね装置においてばね板の摩耗防止を図る上で
大きな効果がある。As described above, according to the present invention, FRPI! This is highly effective in preventing wear of the spring plates in a plate spring device equipped with spring plates.
第１図は本発明の一実施例に係る板ばね装置を一部断面
で示した正面図、第２図は本発明の他の実施例に係る板
ばね装置を一部断面で示した正面図、第３図および第４
図はそれぞれ更に別の実施例に係る板はね装置の一部を
一部断面で示した正面図である。
１慌
１．２・・・ 、ＩＩＬ、２ａ・・・締結部付近、５・
・・センタメルト、７・・・Ｕボルト、ＩＯ・・・介挿
体、Ｉ２・・・スペーサ体、１３・・・間隙部、１５・
・・緩衝部材、Ｉ７・・・耐摩耗部材、２０・・・緩衝
部材。FIG. 1 is a partially cross-sectional front view of a leaf spring device according to an embodiment of the present invention, and FIG. 2 is a partially cross-sectional front view of a leaf spring device according to another embodiment of the present invention. , Figures 3 and 4
Each figure is a partially sectional front view showing a part of a plate spring device according to still another embodiment. 1 panic 1.2..., IIL, 2a...near the fastening part, 5.
...Center melt, 7...U bolt, IO...insert body, I2...spacer body, 13...gap part, 15...
... Buffer member, I7... Wear-resistant member, 20... Buffer member.
Claims (3)
ばね板を厚み方向に重ねて締結するＦＲＰ板ばね装置に
おいて、締結部付近のばね板相互間には圧縮荷重を受け
ると変形する柔軟な介挿体を装填するとともに、ばね板
の端部側の部位には、ばね板の相互対向面の少なくとも
いずれか一方の面にスペーサ体を設けてばね板間に間隙
部を確保するようにしたことを特徴とするＦＲＰ板ばね
装置。(1) In an FRP leaf spring device in which multiple spring plates, including at least one FRP spring plate, are stacked and fastened in the thickness direction, the spring plates near the fastening part have flexibility that deforms when subjected to a compressive load. At the same time, a spacer body is provided on at least one of the mutually opposing surfaces of the spring plates on the end side of the spring plates to ensure a gap between the spring plates. An FRP leaf spring device characterized by the following.
柔軟な緩衛部材の内部に埋設しであることを特徴とする
特許請求の範囲第（１）項記載のＦＲＰ板ばね装置。(2) The FRP leaf spring device according to claim (1), wherein the spacer body is embedded inside a flexible guard member that deforms when subjected to a compressive load.
摩耗部材を取付けてあゐことを特徴とする特許請求の範
囲第（１）項記載のＦＲＰ板ばね装置０(3) The FRP leaf spring device 0 according to claim 1, characterized in that a wear-resistant member is attached to the opposite spring plate surface facing the spacer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7712484A JPS60220233A (en) | 1984-04-17 | 1984-04-17 | Frp leaf spring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7712484A JPS60220233A (en) | 1984-04-17 | 1984-04-17 | Frp leaf spring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60220233A true JPS60220233A (en) | 1985-11-02 |
Family
ID=13625043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7712484A Pending JPS60220233A (en) | 1984-04-17 | 1984-04-17 | Frp leaf spring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60220233A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62165106U (en) * | 1986-04-10 | 1987-10-20 | ||
| FR2666279A1 (en) * | 1990-08-31 | 1992-03-06 | Renault | Elastic suspension with variable flexibility |
| US6012709A (en) * | 1997-08-06 | 2000-01-11 | Pacific Coast Composites | Hybrid leaf spring and suspension system for supporting an axle on a vehicle |
| US6461455B1 (en) | 2000-01-24 | 2002-10-08 | Pacific Coast Composites | Method of producing a hybrid leaf spring |
| WO2004003403A1 (en) * | 2002-06-27 | 2004-01-08 | Db Cargo Ag | Leaf spring having a plurality of layers made of different high polymer materials |
| JP2010018086A (en) * | 2008-07-09 | 2010-01-28 | Nhk Spring Co Ltd | Pad for leaf spring |
| CN103591200A (en) * | 2012-08-15 | 2014-02-19 | 通用汽车环球科技运作有限责任公司 | Leaf spring assembly |
| CN104696403A (en) * | 2015-01-06 | 2015-06-10 | 成都客车股份有限公司 | Composite spring structure realizing equal offset frequency of variable stiffness |
| CN107461439A (en) * | 2017-06-30 | 2017-12-12 | 北汽福田汽车股份有限公司 | Progressive rate leaf spring, plate spring suspension system and vehicle |
| CN107642574A (en) * | 2017-09-14 | 2018-01-30 | 安徽江淮汽车集团股份有限公司 | A kind of FRP composites major-minor spring assembly |
-
1984
- 1984-04-17 JP JP7712484A patent/JPS60220233A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62165106U (en) * | 1986-04-10 | 1987-10-20 | ||
| JPH0539923Y2 (en) * | 1986-04-10 | 1993-10-12 | ||
| FR2666279A1 (en) * | 1990-08-31 | 1992-03-06 | Renault | Elastic suspension with variable flexibility |
| US6012709A (en) * | 1997-08-06 | 2000-01-11 | Pacific Coast Composites | Hybrid leaf spring and suspension system for supporting an axle on a vehicle |
| US6461455B1 (en) | 2000-01-24 | 2002-10-08 | Pacific Coast Composites | Method of producing a hybrid leaf spring |
| WO2004003403A1 (en) * | 2002-06-27 | 2004-01-08 | Db Cargo Ag | Leaf spring having a plurality of layers made of different high polymer materials |
| DE10228902B4 (en) * | 2002-06-27 | 2005-04-21 | Db Cargo Ag | Leaf spring with several layers of different high polymer materials |
| US20110095456A1 (en) * | 2008-07-09 | 2011-04-28 | Nhk Spring Co., Ltd. | Pad for leaf spring |
| JP2010018086A (en) * | 2008-07-09 | 2010-01-28 | Nhk Spring Co Ltd | Pad for leaf spring |
| US8770558B2 (en) * | 2008-07-09 | 2014-07-08 | Nhk Spring Co., Ltd | Pad for leaf spring |
| CN103591200A (en) * | 2012-08-15 | 2014-02-19 | 通用汽车环球科技运作有限责任公司 | Leaf spring assembly |
| US20140048988A1 (en) * | 2012-08-15 | 2014-02-20 | GM Global Technology Operations LLC | Leaf spring assembly |
| CN104696403A (en) * | 2015-01-06 | 2015-06-10 | 成都客车股份有限公司 | Composite spring structure realizing equal offset frequency of variable stiffness |
| CN107461439A (en) * | 2017-06-30 | 2017-12-12 | 北汽福田汽车股份有限公司 | Progressive rate leaf spring, plate spring suspension system and vehicle |
| CN107461439B (en) * | 2017-06-30 | 2019-03-22 | 北汽福田汽车股份有限公司 | Progressive rate leaf spring, plate spring suspension system and vehicle |
| CN107642574A (en) * | 2017-09-14 | 2018-01-30 | 安徽江淮汽车集团股份有限公司 | A kind of FRP composites major-minor spring assembly |
| CN107642574B (en) * | 2017-09-14 | 2019-11-15 | 安徽江淮汽车集团股份有限公司 | A kind of FRP composite material major-minor spring assembly |
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